iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net/mlx5e: Update max_opened_tc also when channels are closed

Browse Source 
max_opened_tc is used for stats, so that potentially non-zero stats
won't disappear when num_tc decreases. However, mlx5e_setup_tc_mqprio
fails to update it in the flow where channels are closed.

This commit fixes it. The new value of priv->channels.params.num_tc is
always checked on exit. In case of errors it will just be the old value,
and in case of success it will be the updated value.

Fixes: 05909babce ("net/mlx5e: Avoid reset netdev stats on configuration changes")
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Maxim Mikityanskiy 2021-01-28 14:37:59 +02:00 committed by Saeed Mahameed
parent a5bfe6b467
commit 5a2ba25a55
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
View File

@ -3627,12 +3627,10 @@ static int mlx5e_setup_tc_mqprio(struct mlx5e_priv *priv,
err = mlx5e_safe_switch_channels(priv, &new_channels,
mlx5e_num_channels_changed_ctx, NULL);
if (err)
goto out;
priv->max_opened_tc = max_t(u8, priv->max_opened_tc,
new_channels.params.num_tc);
out:
priv->max_opened_tc = max_t(u8, priv->max_opened_tc,
priv->channels.params.num_tc);
mutex_unlock(&priv->state_lock);
return err;
}